Method update

dnn/test/common/memory_manager.cpp:53–57

}

void MemoryManagerHolder::update(
        Handle* handle, std::unique_ptr<MemoryManager> memory_manager) {
    std::lock_guard<std::mutex> lock(m_map_mutex);
    m_map[handle] = std::move(memory_manager);
}

void MemoryManagerHolder::clear() {
    std::lock_guard<std::mutex> lock(m_map_mutex);